CA2164090C - Methode pour purifier l'eau usee renfermant du sulfure - Google Patents
Methode pour purifier l'eau usee renfermant du sulfure Download PDFInfo
- Publication number
- CA2164090C CA2164090C CA002164090A CA2164090A CA2164090C CA 2164090 C CA2164090 C CA 2164090C CA 002164090 A CA002164090 A CA 002164090A CA 2164090 A CA2164090 A CA 2164090A CA 2164090 C CA2164090 C CA 2164090C
- Authority
- CA
- Canada
- Prior art keywords
- reactor
- sulphide
- sulphur
- process according
- waste water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 26
- 239000002351 wastewater Substances 0.000 title claims abstract description 17
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000005864 Sulphur Substances 0.000 claims abstract description 63
- 241000894006 Bacteria Species 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 13
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000001301 oxygen Substances 0.000 claims abstract description 12
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 12
- 239000012876 carrier material Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 150000001768 cations Chemical class 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 3
- 229910021653 sulphate ion Inorganic materials 0.000 claims description 3
- -1 sulphate or sulphite Chemical class 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 2
- 238000004064 recycling Methods 0.000 abstract description 2
- 239000000969 carrier Substances 0.000 description 7
- 230000001580 bacterial effect Effects 0.000 description 5
- 239000002028 Biomass Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 241001248539 Eurema lisa Species 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 241000605261 Thiomicrospira Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920001021 polysulfide Polymers 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/05—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by wet processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/345—Biological treatment of water, waste water, or sewage characterised by the microorganisms used for biological oxidation or reduction of sulfur compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Molecular Biology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Micro-Organisms Or Cultivation Processes Thereof (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
Est décrit un procédé pour purifier des eaux usées contenant du sulfure, consistant à oxyder le sulfure pour obtenir du soufre élémentaire dans un réacteur avec des bactéries oxydant le sulfure, en présence d'oxygène, et à séparer des eaux usées au moins une partie du soufre formé pendant l'oxydation, tout en recyclant dans le réacteur une partie du soufre élémentaire séparé des effluents du réacteur, de telle manière qu'une concentration de soufre élémentaire d'au moins 1g/l soit maintenue dans ce dernier. Le soufre, sous forme d'agrégats, s'utilise comme matériau de support pour les bactéries oxydant le sulfure.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9301000A NL9301000A (nl) | 1993-06-10 | 1993-06-10 | Werkwijze voor de zuivering van sulfidehoudend afvalwater. |
NL9301000 | 1993-06-10 | ||
PCT/NL1994/000132 WO1994029227A1 (fr) | 1993-06-10 | 1994-06-09 | aROCEDE POUR PURIFIER DES EAUX USEES CONTENANT DU SULFURE |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2164090A1 CA2164090A1 (fr) | 1994-12-22 |
CA2164090C true CA2164090C (fr) | 2000-03-28 |
Family
ID=19862515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002164090A Expired - Lifetime CA2164090C (fr) | 1993-06-10 | 1994-06-09 | Methode pour purifier l'eau usee renfermant du sulfure |
Country Status (22)
Country | Link |
---|---|
US (1) | US5637220A (fr) |
EP (1) | EP0702663B1 (fr) |
JP (1) | JP2693272B2 (fr) |
KR (1) | KR100345996B1 (fr) |
CN (1) | CN1064026C (fr) |
AT (1) | ATE148082T1 (fr) |
AU (1) | AU673753B2 (fr) |
BG (1) | BG61602B1 (fr) |
BR (1) | BR9406771A (fr) |
CA (1) | CA2164090C (fr) |
CZ (1) | CZ285687B6 (fr) |
DE (1) | DE69401586T2 (fr) |
DK (1) | DK0702663T3 (fr) |
ES (1) | ES2096474T3 (fr) |
FI (1) | FI117382B (fr) |
HU (1) | HUT77974A (fr) |
NL (1) | NL9301000A (fr) |
NO (1) | NO310769B1 (fr) |
PL (1) | PL176634B1 (fr) |
RU (1) | RU2109692C1 (fr) |
TW (1) | TW315358B (fr) |
WO (1) | WO1994029227A1 (fr) |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69706179T2 (de) * | 1996-05-10 | 2002-05-02 | Paques Bio Systems B.V., Balk | Verfahren zur reinigung von schwefelwasserstoff-enthaltenden gasen |
EP0819756A1 (fr) * | 1996-07-16 | 1998-01-21 | Biostar Development C.V. | Bactérie capable de réduire le soufre et son utilisation dans les procédés de désulfurisation biologiques |
CN1155526C (zh) * | 1996-07-29 | 2004-06-30 | 帕克斯生物系统公司 | 废碱液的生物处理方法 |
EP0845288A1 (fr) | 1996-11-27 | 1998-06-03 | Thiopaq Sulfur Systems B.V. | Procédé d'élimination biologique de sulfides |
NL1006339C2 (nl) * | 1997-06-17 | 1998-12-21 | Stork Eng & Contractors Bv | Werkwijze voor het ontzwavelen van afgassen. |
JP3863995B2 (ja) * | 1998-06-19 | 2006-12-27 | ダイワ工業株式会社 | 脱窒機能を有する水処理装置 |
KR100284313B1 (ko) * | 1999-08-20 | 2001-03-02 | 이성기 | 난분해 독성화학물질을 분해하는 세균 공동체 이비씨1000 및 이를 이용하여 산업폐수, 폐기물, 토양 등을 오염시키는 난분해 독성화학물질을 생물학적으로 교정하는 방법 |
US6521201B1 (en) | 2001-02-14 | 2003-02-18 | Uop Llc | Process for recovery of high purity hydrophilic sulfur |
US6544421B2 (en) * | 2001-03-31 | 2003-04-08 | Council Of Scientific And Industrial Research | Method for purification of waste water and “RFLR” device for performing the same |
US6527948B2 (en) * | 2001-03-31 | 2003-03-04 | Council Of Scientific And Industrial Research | Apparatus for purification of waste water and a “RFLR” device for performing the same |
US7306732B2 (en) * | 2001-04-30 | 2007-12-11 | Pulles Howard & De Lange, Inc. | Treatment of water |
US6761823B2 (en) * | 2001-05-21 | 2004-07-13 | W. B. Solutions, Inc. | System and method for removing contaminants from water |
EP1342802A1 (fr) * | 2002-03-08 | 2003-09-10 | Paques B.V. | Procédé de récupération de soufre élémentaire à partir de boues contenant des sulfures métalliques et du soufre élémentaire |
US20030209476A1 (en) * | 2002-04-18 | 2003-11-13 | Josse Juan Carlos | Biological fluidized bed apparatus |
DE10221362C5 (de) * | 2002-05-07 | 2009-05-07 | Friedrich, Michael, Dipl.-Ing. | Verfahren zur Oxidation von in Abwasser gelöstem Sulfid |
AU2003230089B2 (en) * | 2002-05-17 | 2008-12-11 | Water Research Commission | Treatment of water |
US7588627B2 (en) | 2003-04-17 | 2009-09-15 | Shell Oil Company | Process for the removal of H2S and mercaptans from a gas stream |
WO2005044742A1 (fr) * | 2003-11-11 | 2005-05-19 | Paques B.V. | Methode de traitement biologique de sels de soufre |
US20080190844A1 (en) * | 2007-02-13 | 2008-08-14 | Richard Alan Haase | Methods, processes and apparatus for biological purification of a gas, liquid or solid; and hydrocarbon fuel from said processes |
FI119379B (fi) * | 2007-03-16 | 2008-10-31 | Outotec Oyj | Tapa tehostaa selkeytystä sekoitusreaktorissa ja sekoitusreaktori |
JP5267190B2 (ja) * | 2008-03-26 | 2013-08-21 | Jfeスチール株式会社 | 硫黄系cod成分を含有する廃水の処理方法 |
TWI385126B (zh) * | 2008-12-17 | 2013-02-11 | Univ Nat Kaohsiung 1St Univ Sc | 污泥無害化及安定化之生物處理方法及其裝置 |
CN102451607B (zh) * | 2010-10-21 | 2016-05-18 | 李红玉 | 一种用于吸收硫化氢的内外双循环反应的方法和装置 |
JP5923512B2 (ja) * | 2010-12-02 | 2016-05-24 | 香港科技大学The Hong Kong University of Science and Technology | 電子伝達体としてイオウ化合物を利用して汚泥産出を最小限にする、生物学的な廃水の処理及び再利用 |
CN102399721B (zh) * | 2011-10-28 | 2013-02-20 | 中国水产科学研究院南海水产研究所 | 一种海洋硫氧化盐硫杆菌菌株hmgs18及其应用 |
CN102874770B (zh) * | 2012-10-23 | 2015-05-06 | 刘立文 | 一种利用硫酸钙生产硫酸的方法 |
PE20160725A1 (es) | 2013-09-26 | 2016-08-05 | Paques Ip Bv | Un proceso para eliminar el sulfuro de una solucion acuosa |
KR102394301B1 (ko) * | 2014-02-03 | 2022-05-03 | 파?? 비.브이. | 이황화물의 원소 황으로의 생물학적 전환 방법 |
WO2016009346A1 (fr) * | 2014-07-18 | 2016-01-21 | Water Research Commission | Procédé et installation pour le traitement d'eaux usées contenant du sulfate |
DE102014113620A1 (de) * | 2014-09-22 | 2016-03-24 | Ftu Gmbh | Puzzolane zur Abgasreinigung |
EP3034157A1 (fr) | 2015-02-19 | 2016-06-22 | Paqell B.V. | Procédé de traitement d'un sulfure d'hydrogène et mercaptans comprenant du gaz |
CN108430937A (zh) * | 2015-12-17 | 2018-08-21 | 环球油品公司 | 生物去除水中硫化物的方法 |
EP3445725A4 (fr) * | 2016-04-20 | 2019-11-20 | Uop Llc | Bioréacteur sans réextraction pour l'oxydation biologique de sulfure dans des eaux usées |
AU2017375056A1 (en) | 2016-12-16 | 2019-07-11 | Paques I.P. B.V. | Aerated reactor with internal solids separation |
US10538444B2 (en) * | 2016-12-21 | 2020-01-21 | Uop Llc | Digestion of elemental sulfur in bioreactor during biological oxidation of sulfide in wastewater and groundwater |
NO343456B1 (en) | 2017-01-18 | 2019-03-18 | Waterment As | Apparatus and method for treatment of wet organic matter to produce biogas |
CA3083996A1 (fr) | 2017-12-29 | 2019-07-04 | Valmet Technologies Oy | Procede et systeme de reglage d'equilibre s/na d'une usine de pate a papier |
SA119400547B1 (ar) | 2018-03-15 | 2021-12-13 | انديان اويل كوربوريشين ليمتد | نظام حيوي غير عضوي فعال لعلاج تيارات مياه صرف متضمنة كبريتيد ومحتوية على ملوثات أخرى |
US11279619B2 (en) | 2018-06-01 | 2022-03-22 | Paqell B.V. | Process to convert a sulphur compound |
CA3106732A1 (fr) * | 2018-07-19 | 2020-01-23 | Stora Enso Oyj | Traitement biologique de flux alcalins industriels |
CN109437397A (zh) * | 2018-11-23 | 2019-03-08 | 河海大学 | 一种具有螺旋斜面结构的一体化移动床生物膜反应器 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS588315B2 (ja) * | 1979-03-29 | 1983-02-15 | 三菱重工業株式会社 | ジチオン酸およびポリチオン酸含有廃水の生物学的処理方法 |
NL8006094A (nl) * | 1980-11-07 | 1982-06-01 | Landbouw Hogeschool | Werkwijze voor het zuiveren van afvalwater en/of afvalwaterslib. |
US4584271A (en) * | 1983-09-28 | 1986-04-22 | Joy Manufacturing Company | Bacterial regeneration apparatus and process |
DE3542345A1 (de) * | 1985-11-29 | 1987-06-04 | Imhausen Chemie Gmbh | Verfahren zum entfernen von schwefelwasserstoff aus abgas |
SE466198B (sv) * | 1986-09-24 | 1992-01-13 | Ac Biotechnics Ab | Foerfarande foer foerbehandling av vatten paa biologisk vaeg i syfte att utfoera avgiftning av svavelfoereningar ur vattnet |
BR9105710A (pt) * | 1990-04-12 | 1992-08-04 | Pacques Bv | Processos para a purificacao de agua contendo sulfeto,para o tratamento aerobico de agua de esgoto e para a remocao de ions de metal pesado de agua |
NL9002661A (nl) * | 1990-12-04 | 1992-07-01 | Pacques Bv | Werkwijze voor de verwijdering van h2s uit gas. |
-
1993
- 1993-06-10 NL NL9301000A patent/NL9301000A/nl not_active Application Discontinuation
-
1994
- 1994-06-09 AT AT94917828T patent/ATE148082T1/de not_active IP Right Cessation
- 1994-06-09 PL PL94311869A patent/PL176634B1/pl unknown
- 1994-06-09 BR BR9406771A patent/BR9406771A/pt not_active IP Right Cessation
- 1994-06-09 ES ES94917828T patent/ES2096474T3/es not_active Expired - Lifetime
- 1994-06-09 JP JP7501608A patent/JP2693272B2/ja not_active Expired - Lifetime
- 1994-06-09 WO PCT/NL1994/000132 patent/WO1994029227A1/fr active IP Right Grant
- 1994-06-09 CA CA002164090A patent/CA2164090C/fr not_active Expired - Lifetime
- 1994-06-09 KR KR1019950705514A patent/KR100345996B1/ko not_active IP Right Cessation
- 1994-06-09 EP EP94917828A patent/EP0702663B1/fr not_active Expired - Lifetime
- 1994-06-09 CN CN94192415A patent/CN1064026C/zh not_active Expired - Lifetime
- 1994-06-09 DE DE69401586T patent/DE69401586T2/de not_active Expired - Lifetime
- 1994-06-09 RU RU96100756A patent/RU2109692C1/ru active
- 1994-06-09 CZ CZ953249A patent/CZ285687B6/cs not_active IP Right Cessation
- 1994-06-09 HU HU9503517A patent/HUT77974A/hu unknown
- 1994-06-09 DK DK94917828.9T patent/DK0702663T3/da active
- 1994-06-09 AU AU69379/94A patent/AU673753B2/en not_active Ceased
- 1994-06-09 US US08/556,900 patent/US5637220A/en not_active Expired - Lifetime
- 1994-06-20 TW TW083105567A patent/TW315358B/zh active
-
1995
- 1995-11-30 NO NO19954862A patent/NO310769B1/no not_active IP Right Cessation
- 1995-12-08 FI FI955915A patent/FI117382B/fi not_active IP Right Cessation
- 1995-12-08 BG BG100205A patent/BG61602B1/bg unknown
Also Published As
Publication number | Publication date |
---|---|
FI955915A0 (fi) | 1995-12-08 |
HUT77974A (hu) | 1999-01-28 |
ATE148082T1 (de) | 1997-02-15 |
CN1125432A (zh) | 1996-06-26 |
BR9406771A (pt) | 1996-02-27 |
AU673753B2 (en) | 1996-11-21 |
NO310769B1 (no) | 2001-08-27 |
FI955915A (fi) | 1995-12-08 |
BG100205A (bg) | 1996-11-29 |
ES2096474T3 (es) | 1997-03-01 |
NO954862D0 (no) | 1995-11-30 |
CZ285687B6 (cs) | 1999-10-13 |
JP2693272B2 (ja) | 1997-12-24 |
EP0702663B1 (fr) | 1997-01-22 |
AU6937994A (en) | 1995-01-03 |
KR100345996B1 (ko) | 2002-12-11 |
PL311869A1 (en) | 1996-03-18 |
FI117382B (fi) | 2006-09-29 |
BG61602B1 (bg) | 1998-01-30 |
NL9301000A (nl) | 1995-01-02 |
JPH08506271A (ja) | 1996-07-09 |
EP0702663A1 (fr) | 1996-03-27 |
PL176634B1 (pl) | 1999-07-30 |
TW315358B (fr) | 1997-09-11 |
CZ324995A3 (en) | 1996-04-17 |
CA2164090A1 (fr) | 1994-12-22 |
HU9503517D0 (en) | 1996-03-28 |
DK0702663T3 (da) | 1997-06-30 |
DE69401586T2 (de) | 1997-05-22 |
NO954862L (no) | 1995-12-08 |
CN1064026C (zh) | 2001-04-04 |
RU2109692C1 (ru) | 1998-04-27 |
WO1994029227A1 (fr) | 1994-12-22 |
DE69401586D1 (de) | 1997-03-06 |
US5637220A (en) | 1997-06-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2164090C (fr) | Methode pour purifier l'eau usee renfermant du sulfure | |
EP0561889B1 (fr) | Procede d'elimination des composes de soufre des gaz | |
RU2161529C1 (ru) | Способ биологического удаления сульфида | |
US4760027A (en) | Microbiological desulfurization of gases | |
AU719886B2 (en) | Process for the treatment of water containing heavy metal ions | |
SK280745B6 (sk) | Spôsob čistenia odpadovej vody obsahujúcej sírniky | |
CA2107689C (fr) | Methode pour enlever les composes sulfures contenus dans l'eau | |
CN1228118A (zh) | 硫还原细菌及其在生物脱硫方法中的应用 | |
EP0451922B1 (fr) | Procédé pour éliminer le dioxyde de soufre d'un gaz d'échappement | |
CA1259271A (fr) | Traitement des gaz d'echappement | |
EP0218958A2 (fr) | Désulfuration microbiologique de gaz | |
US4859588A (en) | Production of a single cell protein | |
CA2135761C (fr) | Procede permettant d'eliminer les composes sulfures dans l'eau | |
CA2039863C (fr) | Procede biologique de conversion du sulfure d'hydrogene |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20140609 |
|
MKEX | Expiry |
Effective date: 20140609 |